Leaking/constant overflow pipe

Soldato
Joined
27 Dec 2005
Posts
17,315
Location
Bristol
I'm a top floor flat and the basement are getting a dripping into their back courtyard from the overflow pipe. Before getting to them it comes down from us, along the top of a flat roof and down, and that flat roof part also looks and sounds like it's letting water out. It doesn't look like any other flats connect to it before then and it only goes up our roof to an open dead end (?!?) and then there's one large and 3 small pipes coming out our wall from our kitchen area.

It's been going on a while apparently and we haven't noticed and drips or noises. I just turned everything off, including the fridge, unscrewed the boiler cover, put my eye under the sink, under the kickboards and against the bath and toilet basin and I can't hear a thing.

The only thing I haven't checked yet is the tank in the loft but will that even be connected to the overflow pipe?

Basically, where should I look and what should I be looking for in terms of common causes? If I can't find anything the management company will have to get a plumber out anyway but I prefer to just sort things out myself if I can rather than bearing the brunt of increased management fees next year.
 
Right, just gone up and yep, looks like it could be that. Question though, does it get its inlet from the top or the bottom usually?

There's a white pipe in the side which seems to be a couple of mm over with water so it's feeding down there. There's a copper pipe coming into the top (but not breaking the surface of the water) and that's not letting any water out. I couldn't get the cover off completely but it also looks like there's an inlet in the bottom far side of the tank. Is that the main inlet?

Assuming this is the problem, I'm guessing the ball **** needs adjusting and if so is this easy to do?

Edit: Ha starred :D
 
The property is pretty old (about 1780).

Inlet valve looks like it's a goner - covered in so much limescale I couldn't even see how to adjust it - so I've just asked them to get a plumber out and for him to bring a new one with him.
 
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